Pauline Oliveros calls it "deep listening"—a way to pay attention to the sensual qualities of sound itself. Welcome to a world of music that defies categorization, that invites a listener to soak slowly into a deep and otherworldly zone. This music goes by many names: ambient, spacemusic, electronica, sacred music, tribal/trance. Alas, you'll often find it hiding in the New Age section. Unlike some fluffier New Age fare, good ambient albums can explore the deeper, more solitary spaces. At its best, ambient music can sensitize you to sound in unique ways. It can enlarge your listening space to cavernous dimensions, paint hallucinogenic sonic landscapes, summon primordial forces, or enshroud you in clouds of diffuse vapor.

Last week, Robert Rich began this two-part article (click here for part one) with an explanation of ambient music and pointers to some of his favorite artists' web pages. This week he wraps up with more web resources, including record labels, webzines, and online radio programs dedicated to the genre.